BOSTON- BRIDGE REPLACEMENT, B-16-016, NORTH WASHINGTON STREET OVER THE BOSTON INNER HARBOR

The North Washington Street Bridge is a historic structure constructed in 1898. The bridge consists of 10 approach spans and a swing span, which is not operational. The bridge is structurally deficient and is posted for restricted loads. There have been extensive emergency repairs done to the bridge in the past few years. Currently the two center lanes on the swing span are closed due to steel deterioration. The City of Boston proposes to replace the bridge. On the approach spans this replacement will include replacement of the existing granite/concrete bridge piers with reinforced concrete V piers and continuous trapezoidal steel box girders. Proposed deck will provide for increased bicycle and pedestrian accommodations between Kearney Square and Rutherford Ave.